Air cleaner for a 6000 series with PCV option. Nice.
Pictures to help determine if you have the 59 261 carburetor.
Attachments
261 ID 01.jpg (47.44 KB, 31 downloads)
261 ID 02.jpg (101.81 KB, 31 downloads)


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."